The cohomology approximation conjecture for random cubical covers
The cohomology approximation conjecture for random cubical covers
Let be a pure -dimensional cubical complex. Let denote the uniform measure on -dimensional, -regular cubical complexes equipped with a cubical map to that is generically to .
Cohomology approximation conjecture. If , then, as tends to infinity, the induced map on the th cohomology groups is an isomorphism to .
This conjecture extends the preceding examples involving maps to a cube or a torus to arbitrary pure cubical complexes. The supplied text gives no resolution or further conditions, so the conjectural asymptotic assertion remains open.
Sources & referencesView supporting material
Primary source
Eric Babson and Volkmar Welker, “Homological algebra and poset versions of the Garland method”, arXiv:2308.00972 (2026).
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